KEYPAD 3X4 12 KEYBOARD MATRIX MEMBRANE SWITCH KEYPAD SUPER SLIM

Description:

• 3X4 Matrix Keyboard 12 Key Membrane Switch Expansion Keypad Panel 3*4
• Pad Size: 2 x 76.9 x 0.8mm
• Cable Length: 3-1/3" or 86mm (include connector)
• Weight: 7g
• Connector: Dupont 7 pins, 0.1" (2.54mm) Pitch
• Mount Style: Self-Adherence
• Circuit Rating: 35VDC, 100mA
• Insulation Spec.: 100M Ohm, 100V
• Dielectric Withstand: 250VRms (60Hz, 1min)
• Contact Bounce: <=5ms
• Life Expectancy: 1 million closures
• Operation Temperature: -20 to +40 °C

Specification :

• Dimensions: The dimensions of the keypad are usually around 69mm x 45mm x 9mm.

• Key layout: The keys are arranged in three columns labeled as 1, 2, and 3, and four rows labeled as A, B, C, and D.

• Pin configuration: The keypad is connected to a microcontroller or other electronic device using four or five pins, depending on the type of keypad. The two common types of keypad pin configurations are:

• Four-pin configuration: The four pins are labeled as VCC (positive power supply), GND (ground), ROW (output signal from the row pins), and COLUMN (output signal from the column pins).

• Five-pin configuration: The five pins are labeled as VCC (positive power supply), GND (ground), ROW1, ROW2, and ROW3 (output signals from the row pins), and COL1, COL2, and COL3 (output signals from the column pins).

• Operating voltage: The operating voltage of the keypad is usually between 3V and 5V DC.

• Maximum current rating: The maximum current rating of the keypad is around 30mA.

• Lifespan: The keypad has a lifespan of around 1 million operations per key.

• Material: The keypad is usually made of plastic material and the keys are made of rubber or silicone.

• Interface: The keypad can be interfaced with a microcontroller or other electronic device using various protocols such as I2C, SPI, or direct GPIO interface.

• Application: The keypad 3x4 is commonly used in electronic devices such as security systems, home automation systems, mobile phones, handheld devices, and remote control systems.